Varistors Raise The Heat Ceiling

TDK’s EPCOS metal oxide disk varistors are now approved for an increased operating temperature of +105°C, previously +85°C. The reason for this is the recertification of the B722 series varistors in accordance with UL 1449, 4th Edition, and IEC 61051. Raising the permissible operating temperature to +105°C also changes the climate category from 40/85/56 to 40/105/56. The flammability of the epoxy enclosure complies with UL 94 V-0. The monolithic varistors are available with rated voltages between 11 VRMS and 1.1 kVRMS and, depending on type, can withstand surge currents up to 20 kA (8/20 µs). To assist in the design process, PSpice libraries are available. Further information is available on the product webpage.


TDK Corporation of America

Sponsored by Digi-Key

Industrial Ethernet Solutions from ADI Chronous™ Available Now from Digi-Key

ADI’s Chronous portfolio of edge-to-enterprise Industrial Ethernet connectivity solutions is designed to accelerate your path to Industry 4.0. The compatible and interoperable Industrial connectivity products enable best-in-class performance.

Lincolnshire, IL



Suggested Articles

Artificial Intelligence can be used to speed up ingestion and processing of data in supercomputers, according to Nvidia

Advances in CMOS sensors are making the technology a key source of data in applications ranging from smart phones to self-driving cars.

Vehicles to ventilators: Scaling from a small number to many thousands of ventilators per week is a challenge, along with finding the right parts